Phenolic compositions and antioxidant properties of leaves of eight persimmon varieties harvested in different periods

Chang, Ya Ling; Lin, Jer‐An; Lin, Hsin‐Hung; Liao, Po Lin; Wu, Po Jen; Yang, Deng Jye

doi:10.1016/j.foodchem.2019.03.048

Cited by 31 publications

(33 citation statements)

References 23 publications

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“…6 These unparalleled results with the previous study might occur because of many differences, such as harvesting periods, environmental and weather conditions, and environmental temperatures. 19 In this study, 50% ethanol extract, that is semipolar extract, was more powerful in both total phenolic, total flavonoids, and antioxidant activity than any other extracts. Its IC50 of antioxidant activity was also classified as a strong antioxidant based on Fidrianny I.…”

Section: Discussionmentioning

confidence: 56%

Phytochemical Constituents and In vitro Antidiabetic and Antioxidant Properties of Various Extracts of Kenikir (Cosmos caudatus) Leaves

Firdaus¹,

Artanti²,

Hanafi³

et al. 2021

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Section: Discussionmentioning

confidence: 56%

Phytochemical Constituents and In vitro Antidiabetic and Antioxidant Properties of Various Extracts of Kenikir (Cosmos caudatus) Leaves

Firdaus¹,

Artanti²,

Hanafi³

et al. 2021

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“…In addition, the IC 50 of NO radical scavenging activities of CVLP-A, CVLP-B, CVLP-C and CVLP-D were determined to be 1.18 mg/mL, 1.96 mg/mL, 1.54 mg/mL, and 2.97 mg/mL, respectively. Results further confirmed that CVLP-A exerted the strongest in vitro antioxidant activities among all tested samples, which might be attributed to its higher molecular weight and uronic acid content [3,39,40]. Furthermore, due to the existence of electrophilic groups, such as keto or aldehyde groups, in acidic polysaccharides, the liberation of hydrogen from O–H bonds is accelerated, and their radical scavenging activities are therefore improved [41].…”

Section: Resultsmentioning

confidence: 78%

“…Generally, plants rich in phenolic compounds exert strong antioxidant activities [2,35,36,37]. In addition, many studies have shown that the leaves of various plants usually exhibit remarkable antioxidant activities due to their high amounts of phenolic compounds [38,39,40]. Thus, it is important to evaluate the in vitro antioxidant activities of leaves of C. violaceum .…”

Section: Resultsmentioning

confidence: 99%

Analysis of Methanolic Extracts and Crude Polysaccharides from the Leaves of Chuanminshen violaceum and Their Antioxidant Activities

Lin

Wang

et al. 2019

Antioxidants

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The root of Chuanminshen violaceum is used as an important edible and medicinal plant in China. However, its leaves are generally considered byproducts, and therefore do not have a use. Thus, the phenolic compounds in the methanolic extracts (CVLMs) and the chemical characteristics of crude polysaccharides (CVLPs) from the leaves of C. violaceum and their in vitro antioxidant activities were explored. The results showed that chlorogenic acid and rutin were the major individual phenolic compounds in the leaves, which ranged from 1.22 ± 0.03 to 2.87 ± 0.04 mg/g DW, and from 2.25 ± 0.04 to 4.03 ± 0.05 mg/g DW, respectively. Meanwhile, the extraction yields of CVLPs from the leaves ranged from 4.73% to 5.41%. The CVLPs consisted of mannose, rhamnose, galacturonic acid, glucose, galactose, and arabinose, suggesting the existence of pectic polysaccharides. Furthermore, both CVLMs and CVLPs exhibited strong antioxidant activities. Chlorogenic acid and rutin were major contributors to the antioxidant activities of CVLMs, and the antioxidant activities of CVLPs were closely correlated to their α-1,4-D-galactosiduronic linkages. The results are beneficial for understanding the chemical properties and in vitro antioxidant activities of CVLMs and CVLPs. The leaves of C. violaceum have potential to be developed as natural antioxidants.

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“…Dai and Mumper (2010) have similarly reported that the phenolic compounds have high antioxidant activity. A positive correlation between total phenol and anthocyanin with antioxidant activity has been reported in many other fruit species too (He et al, 2015;Chang et al, 2019). On the other hand, an insignificant negative correlation was detected between vitamin C and antioxidant activity, as reported by Okatan (2020), probably due to antioxidants except ascorbic acid may mostly contribute to the total antioxidant activity (Reig et al, 2016).…”

Section: Resultsmentioning

confidence: 80%

Effects of the fruiting period and growing seasons on market quality in goji berry (Lycium barbarum L.)

Polat

Mertoğlu

Eskimez

et al. 2020

Folia Horticulturae

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Progression of the vegetation period and change of year are associated with variations in general climatic parameters, such as temperature, atmospheric pressure, humidity, radiation, precipitation, wind speed and others. Only limited knowledge is available about the effects of these parameters on the characteristics of quality of fruits especially those with successive ripening such as goji berry. In our study, fruits of goji berry were characterised based on physico-chemical properties within four different harvest periods, in two consecutive years. Based on the obtained results, it was found that the pomological characteristics were superior at the beginning of the production season, while the phytochemical properties were better at the end. Fruit length, width and weight characteristics were noted to decrease from the first harvest to the last by 21%, 18% and 33%, respectively, while the total anthocyanin, phenol and antioxidant activity properties increased by 264%, 48% and 105%, respectively. There was a decrease in fruit weight, fruit length and fruit width up to 15.9%, 18.3% and 6%, respectively and were directly associated with yield due to sink competition among fruits. Providing high ripening index that ensures more acceptable fruits, with high soluble solid content (SSC) and titratable acidity (TA) seems to be a very important breeding objective to meet consumer demands thanks to superior organoleptic quality. According to correlations, the synthesis of phenolic compounds increased in parallel with SSC rise and TA, which improved pomological properties too. It is thought that the obtained results may indicate the cultural processes and evaluation methods to be used for the harvested fruits.

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Phenolic compositions and antioxidant properties of leaves of eight persimmon varieties harvested in different periods

Cited by 31 publications

References 23 publications

Phytochemical Constituents and In vitro Antidiabetic and Antioxidant Properties of Various Extracts of Kenikir (Cosmos caudatus) Leaves

Phytochemical Constituents and In vitro Antidiabetic and Antioxidant Properties of Various Extracts of Kenikir (Cosmos caudatus) Leaves

Analysis of Methanolic Extracts and Crude Polysaccharides from the Leaves of Chuanminshen violaceum and Their Antioxidant Activities

Effects of the fruiting period and growing seasons on market quality in goji berry (Lycium barbarum L.)

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